Signal



UNITED STATESPATENT orricu.'

JAMES OMRI TREANOR, OF MIAMI, ARIZONA.

Y SIGNAL.

To all whom it may concern: Y.

Beit lrnowiuthat, v a citizen of they United States, residing `at Miami, in the county of Gila and State Vof Arizona, haveinvented new and useful Improvements in Signals, of which the following is a speciication. v

This invention relates to `audible signals, and has particular reference to a bell primarily designed for the use in mines, the invention residing inthe means employed for soundingbells.

While the bell has been primarily intended for use in mines, it is also susceptible `for usein other places, and embodies among other features a pair of spaced spring pressed plungers, one of which is adapted tobe retracted, theplungers beingqdesigned to cooperate simultaneously` for movement in one direction, and independentin an opposite"directionwhen the plungers are released.

The nature Vand advantages of the invention will be better'understood when the following detail description; is taken in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed. i

In the drawing forming .part of this speciication `like numerals of `reference .indicate similar parts in the several views. and

Figure 1 is a side .elevation with the bell partly in section, showing the normal posi# tion of the plungersn.` l

Fig; 2 is a similar view showingthe relative position of the plungers when retracted, just prior tothe release of said plungers.`

Fig. 3 4is a perspective view of the frame for supporting the bell. p

Referring tothe drawings in detail, 10 indicates the lbell which may `be sired size, and which is supported upon the cross piece frame. The bell 10`is mounted upon the frame by means of a fastening `element 12 which is susceptible of adjustmentpforV moving the bell toward frame, so that AdifferentUsizebells may be used in conjunction with the mechanism for sounding the bell to be hereinafter described. The parallel limbs 13 of the supporting frame have their terminals bent inwardly as at 14 to provide means whereby the frame may be secured to an attaching JAMES O. Trini-nou,4

ing 16 and in the slot 18.

1s `formed with` a lug `21 at a point invits' of any de-y 11 of-Aa substantially U-sh'ap'ed and away from they Y Specification of LettersPatent.` Patentd NOV. 2, 1920' Application filed December 29, 1919. 4 Serial No. 347,888.

bar' 15. 'i The bar 15 projects beyond the op- Y posite sides of the frame, and has associated.. therewith bolts 16 for securing thebar fined,

elongated slot 18, the opening and slots be-v ing alined with `the openings 16 to receive the plungers above referred to.

The mechanism for sounding the bell embodies a pair of spaced parallel plungers 19 and 2O respectively, the plunger 19 being mounted to slide. through the openings16- and 17 of said limbs while the plunger-20.

is arranged to slide through the otheropen'V The plunger 19 length, the lu'g operating between the limbs 13V of the frame. Projecting from the plunger 20 is a lug 22, this lug projectingin the direction ofthe lug 21 and having `a straight side 28 and an inclined surface 24. The in-l clined surface 24; co-actswith one `edge of the slot 18 to controlithe position4 of the lugs 22 with relation yto the lug 21."V For instance, when the lug 22 is partly :moved within the slot 18 under the influence of the spring 25' which surrounds the plunger, the inclined surface 24 co-acts with thea'djacent edge of the slot 18 and forces the plunger 2O into a,

positionnparallel `with ythe. plunger 19, in

which position thek lug 22 lies kin a plane wholly beneath the lug 21 of the plunger 19. A similar spring 25 also surrounds the plunger 19, these springs 25 normally holding the plungers in an extendedparallel position; 'The forward end of the plunger 2O 4is also provided with an inclined surface, 26 for; a purpose to be presently described. Terminally secured to the bar 15 is a'leaf spring 27, the `latter being obliquely disposed with respect; to the bar and 'having its opposite end passed through the slot 18engagingthe adjacent side of the plunger 20. This spring functions to throw r the plunger 20 to an in:` clined position with relation to the plunger 191,*fupon` initial retraction of the plunger 20 whereupon the lug 22 is moved from within the slot 18. The spring 27 thus moves the plunger to a position wherein the lug 27 is arranged to engage the lug 21 of the plunger, when the plunger 2O is retracted.

iio

In practice, the plungers 19 and 2O are tion with respect to the plunger 19, in which position the lug 22 is arranged to engage the lug 21 upon further movement of the plunger to a retracted position. 'Ihese lugsV being brought into engagement, the plunger 19 is retracted with the plunger 2O both of the springs 25 being compressed and placed under tension. The plungers are thus disposed in this direction until the inclined surface 26 of the plunger 20 is brought into engagement with the adjacent end of the slot 18, whereupon the plunger 20 is depressed against the tension of the spring 27 to a position parallel with the plunger 19. Consequently the lug 22 is again placed in a position wholly beneath the lug 21 of the plunger 19, thus releasing thev latter. As the plunger 19 is released, the spring 25 encircling the same functions to project the plunger V19 through the openings in the frame, forcibly throwing the plunger in contact with the bell 10 to sound the latter. AThe spring 25 surrounding the plunger 19 cushions the movement of the plunger incident to the rebound of the latter after sounding the` bell. As the plunger 19 is being pron j ected to sound the bell, the spring surroundv ing the plunger 20 simultaneously moves the plunger to its normal position.

`*While it is believed that from the foregoing description the nature and advantages of the invention will be better understood IV Vdesire to make it known that what is herein shown is merely illustrative, of one embodiment of the invention, to which I do not limit myself, and that such changes may be resorted to when'desired as fall within the scope'of what is claimed.

.Having thus described my invention what I claim as new is l. A signal comprising a bell, a pair of normally `separated spring pressed plungers arranged side by side, means for retracting one of said plungers, cooperating means carried by said plungers for engagement, whereby the other of said plungers is moved by the first mentioned plunger to a retracted position, and means for separating the first mentioned plunger from the second mentioned plunger'at a predetermined interval 60 for independent movement to a projected position. Y 2. A signal comprising a bell, a pair of spring pressed plungers, means for retractling one of said plungers, normally spaced lugs projecting from the respective plungers and adapted tobe engaged at a predetermined interval, whereby theother of said plungers is moved Yby the first mentioned plunger to a Yretracted position, means whereby the first mentioned plunger is separated from the other plunger while being retracted, to permit said plungers to move independently to a projected position.

3. A signal comprising a bell, a pair of spring pressed plungers, means for retracting one of said plungers, means for normally holding said plungers separated and parallel to each other, and permitting one plunger to assume an inclined position upon initial retraction thereof, coperating means carried'by said plunger and operablefwhen said plunger is in .an inclined position to connect said plungers for simultaneous movement to a retracted position, and means for separating said plungers at a predetermined interval, to permit thewplungers to move independently toa projected position.

a. A signal comprising a bell, a pair'of spring pressed plungers, means for retracting one of said plungers, means'for normally holding said plungers separated parallelto each other, and permitting one Vofthe vplungers to assume an inclined position upon initial retraction thereof, resilient means lfor 95 positivelyV moving said plunger to an in- Vclined position and means for separating said plungers at a predetermined interval whereby said plunger is moved independently to a projected position.'

5. A signal comprising a bell, a frame associated therewith', a pair of spring pressed plungers slidably mounted upon the frame, lugs projectingfrom said plungers, means for retracting one ofsaid plungers, one vof 105 said lugs coperating with Va slot in the frame for holding the plunger normally parallel to the other andlseparated therefrom, means for moving said .plunger to an inclined position upon initial retraction 'simultaneously to a retracted position, and

means for separating said plungers at a predetermined interval for independent movement to a projected position. Y

'JAMES 0Min TREANOR. 

